{
  "manageEntity": {
    "action": "Update",
    "entityId": "587956617",
    "entityType": "User",
    "metadata": "{\"cid\":\"bagaaiera7f3gxhuaosrqciviaq64og6eyoefg5dtck6bc4vofjh4ddvvpyza\",\"data\":{\"events\":{},\"playlist_library\":{\"contents\":[{\"type\":\"playlist\",\"playlist_id\":4281}]}}}",
    "nonce": "0x9418f0a2abed8316805ec99d99b5e51954d3b37e64a97b221f9b5cabdb6bbc8a",
    "signature": "0xdc4009d922bfb84eb6a5f36401dcc896245e94501607ad239e6d61a213684a164a84b7a12a1fd5dd9129091aa1b9338ec5440df26bae3b08f9f7a996a69561ed1b",
    "signer": "0x85443D224f6B366da911c15C010ddB754b929fbE",
    "userId": "587956617"
  }
}